Improvement in propellers



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PATENT Y 'rrrcn RUDOLPH HINES AND LOUIS BEYER, OF WASHINGTON, D. O.

IMPROVEMENT IN PROPELLERS.

Specification forming part of Letters Patent No. 129,028, dated J ulylG, 1872.

To all whom it may concern:

Be it known that we, RUDOLPH EINES and LOUIS BEYER, of Washington city, District of Columbia, have invented a new and Improved Propeller for Boats of all kinds; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing making part of this specification, in which- Figure l, Plate 1is a top view of the propeller. Fig. 2, Plate 1, is a longitudinal section through the same. Figs. 3 and 4, Plate l, are views in detail of the device for adjusting the propeller-shaft. Fig. 5, Plate 2, is a section taken vertically and transversely through the propeller frame and shaft, as indicated by dotted line ze, Fig. 1. Fig. 6, Plate 2, is a view showing a connection which may be used between the piston of an engine and the propeller-shaft.

Similar letters of reference indicate corresponding parts in the several figures.

The object of this invention is to support and guide an oar-blade in such amanner that there will be imparted to it the well known sculling movements by giving a simple vibration movement, as will be hereinafter explained.

The following description of my invention will enable others skilled in the art to understand it.

Inthe accompanying drawing, A represents a triangular frame, adapted to support the working parts of the propeller. B is an elevation ofthe frame, in which a ball, N, is applied so as to receive a universal movement. Into this ball is secured one end'of a blade, P, and also a shaft, D, as shown in Fig. l. The shaft D is carried forward and has its bearing in a sliding block, a, which is confined between two arched ways, C C. This shaft is thus allowed to rotate about its long axis and also to receive a lateral vibrating motion, the latter being afforded by the universal ball-joint N. For the purpose of oscillating the shaft D at the terminuses of its strokes the following device is employed: Below this shaft D is a bedpiece, G, which presents two abutments, b b, and receives between them an arched bearing, g. This hearing is held centrally between the said abutments b b by means of a spring, S, which will allow a slight lateral play of the bearin g. On the shaft D, just above the bearing g, is an adjustable collar, c, which is held by a key-tenon, c1, against turning on the shaft. From this collar c radiate two arms, e e, which are diametrically opposite each other, and which are hooked on their ends, the hookr on the lower arm being received beneath an overhanging portion, t, of the arched bearing g, as shown in Fig. 2, for the purpose of preventing the shaft D from rotating while in operation. The lower arm e slides upon the arched surface of the bearing g during each stroke of the shaft D, and holds the blade P at a proper feather. Near the terminus of each stroke of the shaft and its blade the end of the lower arm e drops into a space between the end of the bearing g and abutment b, and as the stroke is completed, the arm e bearing against the abutments l), the shaft will be turned part of a revolution about its axis, and thus reverse the feather of the blade'P for the next stroke. To do this successfully the arched bearin g g is allowed to yield as the inclination of the arm e is reversed, so as to allow the lower end of this arm to rise upon the surface of the bearing g preparatory to the succeeding stroke.

It will be seen that three motions are given to the shaft D and blade P, which are necessary to scullin g. The first motion is produced by the lateral vibration of the front end of the shaftD; the second is produced by the arched guide-ways C (l 5 and the third is produced by the oscillation of the shaft D about its longitudinal axis.

For the purpose of backing a boat it is necessary to invert the blade P. To do this the collar c is made to slide on its shaft so as to remove the arms e e from the bearing g, and thus allow the shaft D to be turned one-half around and bring the other arm into play on ,the bearing. To effect this adjustment conveniently, we connect the collar c to a rectangular lever-frame, e3, by, means of a link, o2,

and construct the frame c3, by means of a link, y

c2, and construct the frame c3 with a socket to receive a rod by which to move the collar c and turn the shaft D over.

For the purpose of operating this sculling propeller by means of an engine the following contrivance may be employed: A collar, n, is loosely applied on the front end of the shaft D, to which one end of a curved connectingrod, J1, is jointed, the opposite end of which 'rod is pivoted to one arm of a lever, J, which has its fulcrum at j, and which may be either a right-angular lever, as indicated in full lines, Fig. 6, or this lever J may be straight, as indicated in dotted lines in the same figure. Thev piston-rod J 2 is attached by a pivot directly to the lever` J.

We do not confine ourselves to operating the improved propeller by means of an engine, although it will beseen that the organization admits of such power being applied to advantage.

Having described our invention, what we claim as new, and desire to secure by Letters lv. The horizontally-arranged support B, and the upper and lower guides G C, ball N, and block a, in combination with the shaft D and the oblique propeller-blade P, substantially as described.

2. The laterally-movable bearin g g i and fixed stops b b, in combination with one or more tripping-arms, e, shaft D, and propeller P, substantially as described.

3. The collar c, carrying one or more arms, e, applied on the shaft D, so that it is capable of adjustment in a direction with the length of such shaft, by means substantially as described.

4. The lever c3, applied to shaft D and con- I 

